Astronomy has been at the forefront of scientific data sharing, which is now a hot topic, including at the
policy level (European Commission and ministerial level in many countries). Data is already one of the
major infrastructures of astronomy, thanks to the data and service providers and to the International
Virtual Observatory Alliance (IVOA), and most on-line astronomical data is FAIR
(Findable/Accessible/Interoperable/Reusable). Other disciplines are moving on in the same direction.
International organisations, in particular the Research Data Alliance (RDA), are developing building
blocks and bridges to enable scientific data sharing across borders. The liaisons between RDA and
astronomy are discussed.
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